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Yakvenalex [24]
3 years ago
15

Solve for x. 3(x-15)=30help!!!!

Mathematics
2 answers:
ankoles [38]3 years ago
5 0

Answer:

3(x - 15) = 30 \\ multiply \: in \: between \: brcket \\ 3x - 45 = 30 \\ 3x = 30 + 45\\ 3x = 75 \\ x =  \frac{75}{3}  = 25 \\ thank \: you

Gnoma [55]3 years ago
5 0

Answer:

<em>x</em><em> </em><em>is</em><em> </em><em>2</em><em>5</em>

Step-by-step explanation:

3 ( x - 15) = 30

3x - 45 = 30

3x = 30 + 45

3x = 75

x = 25

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the answer is LM

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7 0
3 years ago
Ms. Ironperson and Mr. Thoro are making Avenger posters to give children when they visit Avenger Academy. Ms. Ironperson has com
nekit [7.7K]

Answer:

1) When this does happen, how many posters will each Avenger have completed?

24 posters each.

2) If x denotes the number of days and y denotes the number of posters, what are the equations needed to solve this problem?

y = 12 + 6x.......... Equation 1

y = 12x .......... Equation 2

Step-by-step explanation:

1) When this does happen, how many posters will each Avenger have completed?

We are told in the question:

Number of days = x

Number of posters = y

Ms. Ironperson has completed 12 posters and will complete 6 more per day.

y = 12 + 6x.......... Equation 1

Mr. Thoro has not started yet but can make 12 per day.

y = 12x................Equation 2

Hence, the equations needed to solve this problem:

y = 12 + 6x.......... Equation 1

y = 12x .......... Equation 2

We substitute 12x for y in equation 1

y = 12 + 6x.......... Equation 1

12x = 12 + 6x

Collect like terms

12x - 6x = 12

6x = 12

x = 12/6

x = 2

Hence, since x = the number of days,

The number of days = 2 days

Substitute 2 for x in Equation 2

y = 12x .......... Equation 2

y = 12 × 2

y = 24 posters.

Since y = number of posters,

number of posters = 24 posters.

We were told in the question that, when Mr Thoro catches up with Ms Ironperson, that would both have completed the same number of posters.

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3 years ago
Divide. Write your answer as a decimal.<br><br> 0.459 divided by 0.17 =
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Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Bobby is 28 centimeters shorter than Daniel. Roy is 19 centimeters taller than Daniel. Find the difference in height between Roy
Harman [31]

There is a 47cm difference between the two

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3 years ago
From the set {2, 17, 19}, use substitution to determine which value of x makes the equation true.
frutty [35]

54x = 864

A. x = 17 → 54(17) = 918 ≠ 864

B. x = 2 → 54(2) = 108 ≠ 864

C. x = 19 → 54(19) = 1,026 ≠ 864

<h3>Answer: D. none of these</h3>

Solution

54x = 864     <em>divide both sides by 54</em>

x = 16

5 0
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